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Quad 306 recap parts suggestions

Discussion in 'd.i.y.' started by booja30, May 14, 2019.

  1. booja30

    booja30 pfm Member

    I just received a nice Quad 306 that still has its original 1986 PSU caps. They are a bit puffed out and 33 years old, so I'm going to recap the amp.

    [​IMG]

    On one or more threads I've seen recommendations for Panasonic 6800uF 63V 105° caps, but don't see those on RS, Digikey, Farnell, etc. Mostly I am seeing Epcos (the ones DaDa use for their upgrade kit), Kemet, as well as Nichicon, Vishay, etc. I will also need two small 47uF 63V caps.

    I live in Spain and shipping is very expensive and slow from any of these suppliers, so I'd need to buy everything from one source.

    I'd like to buy from DaDa to support them but they don't sell the smaller caps I'd need. Their kit uses something with quite different specs (100uF 63V) which might be part of their upgrade strategy. I'd rather live with the stock sound for a while before making big changes.

    Thanks in advance!
     
  2. colasblue

    colasblue pfm Member

    your problem is going to be getting something short and fat to fit that space

    Of caps in that format Nippon Chemicon are about the best and you can probably get away with upsizing to 6800 uF

    https://www.ebay.co.uk/itm/2x-Snap-...095490?hash=item4868b14d82:g:~eQAAOSwyltZOMOb

    These seem to be pretty ancient stock so maybe not ideal

    If these aren't too tall they may be a winner

    https://www.ebay.co.uk/itm/6800UF-6...419314?hash=item3addbf84f2:g:OtwAAOSwbqpT9IkU

    You also have decent options from Samwha

    https://www.ebay.co.uk/itm/Electrol...205207?hash=item1c58852597:g:xM4AAOSwd0BV4F1A

    https://www.ebay.co.uk/itm/Samwha-H...265240&hash=item1a57011a0a:g:gMwAAOSwYIpb~8CJ

    and Nichicon

    https://www.ebay.co.uk/itm/Electrol...205207?hash=item1c58852597:g:xM4AAOSwd0BV4F1A

    and again if they aren't too tall Elna

    https://www.ebay.co.uk/itm/PCB-4700...m=332365890874&_trksid=p2047675.c100005.m1851

    I don't think either the Nippon Chemicons or Panasonics are actually in current production so its NoS only.

    I think your choices are basically down to what's currently available.
     
  3. 337alant

    337alant Negatively Biased

    I used Kendiels in mine and they fit fine 63V 6800uf

    [​IMG]IMG_2941 by Alan Towell, on Flickr
    Alan
     
  4. booja30

    booja30 pfm Member

    Thanks for all those recommendations. Coincidentally I just placed an order with Farnell before I came back to check PFM. I bought some Kemet ELGs for the PSU caps and then some Panasonics and Nichicons to try for the filters.

    It's been 37°C here this week so working over a hot soldering iron sounds less fun than usual. :)
     

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